Bending moment-mean curvature relationship with constant axial load in the presence of tension stiffening

Creazza, Giuseppe; Marco, Roberto Di

doi:10.1007/bf02472612

Cited by 14 publications

(12 citation statements)

References 7 publications

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“…In a very interesting paper [11] the authors analysed behaviour of elements with the occurrence of cracks due to bending. The impact of cracks on the M−ϕ diagram, behaviour in between the cracks as well as the phenomenon of "reinforcement" of reinforcing steel has been analysed.…”

Section: Previous Researchmentioning

confidence: 99%

Determination of the bending moment – curvature relationship for bridge concrete columns

Ćurić¹,

Radić

Franetović

2016

Teh. vjesn.

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Subject reviewThe paper deals with accurate determination of the relationship between bending moment and curvature of hollow rectangular bridge columns. With the calculation procedure to determine accurate curve of relationship, the method of determining the idealized diagram typically used in practice is also shown. The aim of this work is to point to a reserve in load capacity of an element when comparing the results of an accurate curve and the idealized diagram, and to analyse the impact of various calculation situations on the curve shape. The conclusion is that for practical use it is sufficient to use the idealized diagram, but for detailed scientific analysis the exact relationship between bending moment and curvature must be determined. Keywords: bending moment; bridge columns; curvature; hollow sectionIznalaženje odnosa momenta savijanja -zakrivljenosti armiranobetonskih stupova šupljeg presjeka na mostovima Pregledni članak Predmet rada je točno određivanje odnosa momenta savijanja i zakrivljenosti šupljih pravokutnih stupova mostova. Uz postupak proračuna točne krivulje odnosa prikazan je i način određivanja idealiziranog dijagrama obično korištenog u praksi. Cilj rada je ukazati na zalihu nosivosti elementa u usporedbi točne krivulje i idealiziranog dijagrama te analizirati utjecaj različitih proračunskih situacija na oblik krivulje. Zaključak je da je za praktičnu uporabu dovoljno koristiti idealizirani dijagram dok se za detaljne znanstvene analize mora određivati točan odnos momenta savijanja i zakrivljenosti.

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Section: Previous Researchmentioning

confidence: 99%

Determination of the bending moment – curvature relationship for bridge concrete columns

Ćurić¹,

Radić

Franetović

2016

Teh. vjesn.

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“…4 as discrete and independent elements. Numerous boundary conditions have been used to find a solution [6][7][8][9] such as: full-interaction at the cracked section; equally spaced cracks; and zero slip mid-way between cracks. The next step was to allow for interaction between adjacent elements [5] and this required additional boundary conditions such as the assumption that the crack width varied linearly and the crack faces moved as rigid bodies.…”

Section: Numerical Modellingmentioning

confidence: 99%

“…Partial-interaction numerical models [5][6][7][8][9] have been developed in order to gain an understanding of the behaviour of reinforced-concrete hinges. These models often use a shooting method of analysis [10] that requires the determination of the boundary conditions and, hence, are the first step in developing the governing mathematical equations.…”

Section: Numerical Modellingmentioning

confidence: 99%

Ductility of FRP plated flexural members

Oehlers

2006

Cement and Concrete Composites

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“…Some authors [21][22] attempted to introduce crack bridging effects in beam equations but refined experimental studies are still necessary to understand those local phenomena and their influence onto the global behavior of the structure.…”

Section: Editorial Note P Hamelin Is a Rilem Senior Membermentioning

confidence: 99%

Mechanical behavior of cracked beams strengthened with composites: application of a full-field measurement method

2003

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The mechanical behavior of pre-cracked SteelReinforced Concrete beams strengthened with Carbon Fiber Reinforced Polymer laminates bonded on the bottom surface is addressed. The displacement fields over the lateral face of beams loaded under four-point bending are measured with the grid method. The analysis of the results in the constant moment span is achieved at two different scales : local and global.At the global scale, the parameters of a classical beam of Bernoulli (curvature and neutral axis) are identified. It is proved that they can characterize the structural behavior both before and after repair.At the local scale, the cracks are localized and their width is measured. It shows that the stress distribution is modified between tensile cracks due to the bridging effect by the composite laminate, leading to the creation of new smaller cracks.The investigation of the bridging effect by the composite laminate is of major interest for the characterization of a possible enhancement of pre-cracked RC beam serviceability. It has already been addressed in the literature but some confusion still remained. The present experimental study clearly shows that it is mostly located in the cover concrete and that the composite slightly modifies the beam mechanical behavior. RI~SUMI~

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Bending moment-mean curvature relationship with constant axial load in the presence of tension stiffening

Cited by 14 publications

References 7 publications

Determination of the bending moment – curvature relationship for bridge concrete columns

Determination of the bending moment – curvature relationship for bridge concrete columns

Ductility of FRP plated flexural members

Mechanical behavior of cracked beams strengthened with composites: application of a full-field measurement method

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